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Eghaust Camshaft
Step 1
open a sketch on the right plane
Step 2
draw a circle
Step 3
extrude it
Step 4
open a sketch on the right plane again and draw a 10mm radiused circle
Step 5
draw an axis and one more circle like shown
Step 6
draw a line
Step 7
make the line tangent with the circles
Step 8
make your sketch like this
Step 9
use mirror command
Step 10
use trim command
Step 11
use extrude command like shown
Step 12
use mirror command. use right plane as mirror plane
Step 13
open a sketch on the right plane..
Step 14
draw a circle
Step 15
extrude it
Step 16
open a sketch on the front plane and draw a centerline
next: http://grabcad.com/questions/tutorial-how-to-make-engine-part-38